/* * FTCache * * Copyright (C) 2001 Barnaby Gray <barnaby@beedesign.co.uk> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #ifndef FTCACHE_H #define FTCACHE_H #include "Cache.h" #include "libicq2000/sigslot.h" namespace ICQ2000 { /* predeclare classes */ class FileTransferClient; class FileTransferEvent; /* fd -> FileTransferClient cache * * Where the party is at. Once a FileTransferClient object is added to the * cache MM for it is assumed on the cache. Also lookups for a * Contact are done in linear time now, it was just too much of a * head-ache maintaining the uin map in Client. */ class FTCache : public Cache<int, FileTransferClient*> { public: FTCache() { } ~FTCache() { removeAll(); } FileTransferClient* getByEvent(FileTransferEvent* ev) { literator l = m_list.begin(); while (l != m_list.end()) { if ((*l).getValue()->getEvent() == ev) return (*l).getValue(); ++l; } return NULL; } bool exists_listenfd(int fd) { literator l = m_list.begin(); while (l != m_list.end()) { if ((*l).getValue()->getlistenfd() == fd) return true; ++l; } return false; } void remove_and_not_delete(const int &k) { literator i = lookup(k); if (i != m_list.end()) m_list.erase(i); } void removeItem(const FTCache::literator& l) { delete ((*l).getValue()); Cache<int, FileTransferClient*>::removeItem(l); } void expireItem(const FTCache::literator& l) { expired.emit( (*l).getValue() ); //Cache<int, FileTransferClient*>::expireItem(l); /* this will removeItem(..), which'll delete the DirectClient * (see above). */ } void removeContact(const ContactRef& c) { literator curr = m_list.begin(); literator next = curr; while ( curr != m_list.end() ) { FileTransferClient *ftc = (*curr).getValue(); ++next; if ( ftc->getContact().get() != NULL /* Direct Connections won't have a contact associated * with them initially just after having been accepted as * an incoming connection (we don't know who they are * yet) - so Contact could be a NULL ref. */ && ftc->getContact()->getUIN() == c->getUIN() ) { removeItem(curr); } curr = next; } } FileTransferClient* getByContact(const ContactRef& c) { // linear lookup literator curr = m_list.begin(); while ( curr != m_list.end() ) { FileTransferClient *ftc = (*curr).getValue(); if ( ftc->getContact().get() != NULL /* Direct Connections won't have a contact associated * with them initially just after having been accepted as * an incoming connection (we don't know who they are * yet) - so Contact could be a NULL ref. */ && ftc->getContact()->getUIN() == c->getUIN() ) return ftc; // found it ++curr; } return NULL; // not found } void clearoutMessagesPoll() { literator curr = m_list.begin(); while ( curr != m_list.end() ) { FileTransferClient *ftc = (*curr).getValue(); ftc->clearoutMessagesPoll(); ++curr; } } sigslot::signal1<FileTransferClient*> expired; }; } #endif